2. Find the area of the following triangles for the given values using Heron’s
formula and the Solve feature.
a.
a = 5, b = 7, c = 10 area = __________
b.
a = 10, b = 8, c = 6 area = __________
c.
a = 6, b = 4, c = 8 area = __________
3. Find the area of the following circular sectors for the given values using the
formula in the Solve feature.
a.
r = 8,
5
θ
= area = __________
b.
r = 10,
3
2
θ
= area = __________
c.
r = 7,
9
4
θ
= area = __________
Activity 8 • Pre-Calculus with the Casio fx-9750GII
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