Please help, giving all my points. Geometry

Step-by-step explanation:

The shortest sides are corresponding in similar triangles

One has side length of 5, another one is 20

Scale factor is:

Since perimeter is sum of 3 sides and each side has 4 times difference, the perimeter will have 4 times the difference. So it is:

Dilation doesn't affect angle measures. A and W are corresponding angles and they measure the same.

m∡W = 5x = 5*5 = 25°

Dilation doesn't affect angle measures. B and M are corresponding angles and they measure the same.

m∡B = 2x + 30 = 2*20 + 30 = 70°

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5