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

is it 60???

anonymous · Answer

If a right triangle has legs of length A and B, and its hypotenuse is C, then:
$$A^2 + B^2 = C^2$$

anonymous · Answer

I don't know thats why i need help

anonymous · Answer

|dw:1334940044187:dw|

anonymous · Answer

AB ^2 + BC ^2=AC ^2
15^2 +20 ^2 =AC^2
AC=sqrt(225+400)=sqrt(625)=25 cm
hence perimeter=25+20+15=60cm|dw:1334940102998:dw|