A student has test scores of 68%, 75%, and 79% in a government class. What must she score on the last exam to earn a B (80% or b
1 answer:
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Answer:
Step-by-step explanation:
a). By applying Pythagoras theorem in right triangle ABC,
AC² = AB² + BC²
20² = 16² + BC²
BC =
= 12
Therefore, another leg of the triangular base = 12 cm
Area of the triangular base ABC =
=
= 96 cm²
Volume of a triangular prism = Area of the triangular base × height
960 = 96 × b
b = 10 cm
b). Area of the triangle ABC = 96 cm²
