The area of triangle ABC is ____
square units.

Answer:
A = (1/2)(7 units)(5 units) = (35/2) units^2.
Step-by-step explanation:
Call AB "the base" and recognize that its length is 7 units. Call BC "the height" and recognize that its length is 5 units.
Then apply the area-of-a-triangle formula A = (1/2)(base)(height):
A = (1/2)(7 units)(5 units) = (35/2) units^2.
The area of triangle ABC is A = (1/2)(7 units)(5 units) = (35/2) units^2.
Triangle's area is equal to 1/2 (b* h) square units.
where the triangle's base and height, respectively, are denoted by b and h.
Given
Call AB "the base" and recognize that its length is 7 units. Call BC "the height" and recognize that its length is 5 units.
Then apply the area-of-a-triangle formula A = (1/2)(base)(height):
A = (1/2)(7 units)(5 units) = (35/2) units²
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