The two shortest legs of a right triangle are 12 cm and 16 cm. What is the length of the longest leg?

The length of the longest leg is 20 cm.

Step-by-step explanation:

Use the Pythagorean theorem to work this out; a² + b² =  c².

If the two shortest legs (sides) are 12 cm and 16 cm, then the longest leg will be substituted by c.

Substitute 12 into a and 16 into b. The equation then becomes:

12² + 16² = c². Simplify this equation.

144 + 256 = 400.

Now, find the square root of 400 (c) because this answer is c in squared form.

= 20.

Hence, the length of the longest leg is 20 cm.

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

answer:     true

step-by-step explanation: