What is the formula for the surface area of a right triangle?

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Answer 1 · 2015-12-30T04:26:54

The formula for surface area of a right triangle is A = #(b • h)/2# where b is base and h is height.

Example 1:

A right triangle has a base of 6 feet and a height of 5 feet. Find its surface area.

A = #(b • h) / 2 #

A = #(6 • 5) / 2#

A= 15 #feet^2#

The area is 15 #feet^2#

Example 2:

A right triangle has a surface area of 21 #inches^2# and a base that measures 6 inches. Find its height.

A = #(b • h) / 2 #

21 = #(6 • h) / 2 #

42 = 6 • h

#42/6# = h

7 = h

The height is 7 inches.