The area of a triangular grassland is determined by the length of its bottom 20 m and the height 4 m less than the bottom

The area of a triangular grassland is determined by the length of its bottom 20 m and the height 4 m less than the bottom

A: the area of this triangle is 160 square meters

The area of a triangular grassland is determined by the length of its bottom 20 m and the height 4 m less than the bottom

A: the area of this triangle is 160 square meters

The application of triangle area
Xiao Ming takes out a triangle board from his pencil case and draws a triangle along three sides. The lengths of the three sides are 6cm, 8cm and 10cm respectively. What is the area of the triangle?

This is a right triangle. The right side is 6.8, and the area is 6 times 8 divided by 2, which is 24 square centimeters

The area of a triangle is s square centimeters. If its height is 5 centimeters, how many centimeters is its bottom

The area of a triangle is s square centimeter. If its height is 5 cm, then its bottom is 2S / 5 cm

The area of a triangle is s square centimeter. If its height is 5 centimeter, then its bottom______ Cm

Because s = 12Ah, so a = 2S △ h, = 2S △ 5, = 25s (CM); answer: its bottom is 25s cm. So the answer is: 25s

What is the base and height of a triangle with an area of 5 square centimeters

The bottom is 5cm and the width is 2cm

Cut the largest triangle on a piece of rectangular paper. The area of the triangle accounts for half of the area of the rectangle______ %．

1 △ 2 = 50%; answer: the area of triangle accounts for 50% of the area of rectangle; so the answer is: 50

The ratio of the bottom to the height of an isosceles triangle is 8:3. Cut it along the height of the side and form a rectangle. The area of the rectangle is 48 square centimeters. What's the circumference of the rectangle?

After cutting, half of the bottom of the original triangle is the length of the rectangle, and the original height is the width of the rectangle, so the ratio of length to width is 4:3. Because the area is 48, the length is 8cm, the width is 6cm, so the perimeter of the rectangle is 28cm

The ratio of the bottom to the height of an isosceles triangle is 8 to 3. Cut it along the height of the bottom to form a rectangle. The area of the rectangle is 48 square centimeters, which is rectangular
What is the circumference of the line?

Analysis: cut along the height of the bottom edge to form a rectangle, then the length of the rectangle is 4 parts, and the width is 3 parts; then calculate the number of each part according to the area of the rectangle, and further calculate the length, width and perimeter of the rectangle
Let X be the number of each copy,
（8÷2）x*3x=48,
12x²=48,
x=2；
Length of rectangle: 2 × 4 = 8 (CM),
Width of rectangle: 2 × 3 = 6 (CM),
The circumference of the rectangle is (8 + 6) × 2 = 28 (CM)
A: the circumference of a rectangle is 28 cm

The ratio of the bottom to the height of an isosceles triangle is 8:3. Cut it along the height of the bottom to form a rectangle. The known area of the rectangle is 48 square centimeters
I want to be successful
Finding the perimeter of a rectangle can't solve the problem downstairs

Let the height be 3x and the bottom be 8x. Because the height of an isosceles triangle bisects the bottom, half of the bottom is 4x. This is one side of a rectangle, and the other side is high, that is, 3x
So rectangle area = 3x * 4x = 12x = 48 square centimeter
So x = 2,
So the height is 6 cm and the bottom is 16 cm
The circumference of the rectangle is (6 + 16 / 2) * 2 = 28cm