Area and Perimeter of Triangles Answers

What is the area of the equilateral triangle with the length of each side equal to a?

base and heightSAS✔ SSS

Area = 1/2bhtrigonometric area formula✔ Heron's formula

29.00 square units✔ 34.98 square units35.00 square units36.24 square units

See the figure of ΔABC with auxiliary lines added.

a/ca/bCD/a✔ CD/b

1/2absin(C)1/2acsin(B)✔ 1/2bcsin(A)

⇒ 36.7

How much material, in square inches, is needed to make the flag? ⇒ 360 square inches If the material costs $0.15 per square inch, how much will Marta spend on materials to make the flag? $

Which statement about the relative areas of ΔABC and ΔXYZ is true?

⇒ 129.82

See the figure of ΔABC with auxiliary lines added. If c is the base of ΔABC, the height is . sin(A) = . The previous statement is leading to the derivation of which area formula? Area ΔABC =