Answer:
x=10
Step-by-step explanation:
The two triangles are similar since each triangle is the same shape of right triangle but different sizes. To find x, write a proportion between two equal ratios of side lengths.

Solve by cross multiplying.
28(3x) = 20(4x+2)
84x = 80x + 40
4x = 40
x=10
Answer:
x = 10
Step-by-step explanation:
61 - 21 = 40
40 / 4 = 10
x = 10
Answer:
the first box is,
the second box is 13.
-by-step explanation:
In a triangle, the hypotenuse is equal to the product of the length of a leg, x, and, and both legs are the same length.
Since the given leg length is 13, the other leg has a length of 13. The hypotenuse of the triangle equals the product of the leg length and, or.
perimeter of a shape is just adding all side lengths together. Since it is a square, all sides are the same so just multiply 16.5 x 4
which is = 66 m.