Find the surface area of the composite solid.
A. 502 m2
B. 574 m2
C. 646 m2
D. 720 m2

a

Step-by-step explanation:

find the a of each face:

56,56,63,63,90,72,54,24,24

add each area of the faces together

56+56+63+63+90+72+54+24+24

answer=502

isocolese triangle

we know that the line connect a and b is the hyptonuse

so first find the hypotonuse length using the distance formula, call the length c

since it is an isocolese triangle, the lengths of the legs are the same

using pythagorean theorem,

in this case, a=b since isocolese triangle so we get

or

we can find c so we can find the distances

we know that if we draw 2 circles, each has center at a and b, and find where they intersect, we can the 2 possible locations for c

if a has center at (xa,ya) and b has center at (xb,yb), then we can solve where

and

intersect to find where they intersect

i'm not going to put an example because i have to go to class. i hope this explanation is enough