The lengths of the legs of a right triangle are 15 cm and 20 cm. What is the perimeter of the triangle? Note: You will need to use the Pythagorean theorem to find the hypotenuse.

A. 35 cm

B. 25 cm

C. 60 cm

D. 300 cm

E. 20 cm

Question

The lengths of the legs of a right triangle are 15 cm and 20 cm. What is the perimeter of the triangle? Note: You will need to use the Pythagorean theorem to find the hypotenuse.

A. 35 cm

B. 25 cm

C. 60 cm

D. 300 cm

E. 20 cm

anonymous · Answer

get to know the 3-4-5 triangle so that you can do the solve this type of triangle. since the legs are a dilation of a scale factor of 5 the hypotenuse must dilate by  that scale factor also.. 3*5=15, 4*5=20, 5*5=25.  add them up and you have your perimeter.

aroub · Answer

(15)^2+(20)^2=(h)^2
225+400=h^2
625=h^2
25=h

P=15+20+25
P=60

anonymous · Answer

I GET IT! ;)