Triangle STV has sides ST = TV = 10, and SV = 12. What is the area?  Choose one:
A) 36
B) 40
C) 44
D) 48
E) 52
Let the base B of the triangle be SV = 12. Then we need to find the height H.   H^2 = 100^2 - 6^2 = 64 and then H = 8.   The area is (1/2)*B*H = 6*8= 
<gadget id="calculator">6*8</gadget>
<output>48</output>
48   The answer is 48.
<result>D</result>
Triangle STV has sides ST = TV = 10, and SV = 12. What is the area?