Question

directions: please find the area of the following triangles below using the correct formu show all work!! 3) triangle on grid with handwritten 7×4=14 14÷2=7 4) triangle on grid with handwritten b=5 h=

Explanation:

Problem 3:

Step1: Identify base and height

From the grid, base \( b = 7 \), height \( h = 2 \) (assuming each grid square has side length 1). The formula for the area of a triangle is \( A=\frac{1}{2}bh \).

Step2: Substitute values into formula

Substitute \( b = 7 \) and \( h = 2 \) into \( A=\frac{1}{2}bh \). So \( A=\frac{1}{2}\times7\times2 \).

Step3: Simplify the expression

\( \frac{1}{2}\times7\times2 = 7 \) (the 2 and \( \frac{1}{2} \) cancel out, leaving \( 7\times1 = 7 \)).

Step1: Identify base and height

From the grid, base \( b = 5 \) (horizontal length), height \( h = 3 \) (vertical length, assuming each grid square has side length 1). The formula for the area of a triangle is \( A=\frac{1}{2}bh \).

Step2: Substitute values into formula

Substitute \( b = 5 \) and \( h = 3 \) into \( A=\frac{1}{2}bh \). So \( A=\frac{1}{2}\times5\times3 \).

Step3: Simplify the expression

\( \frac{1}{2}\times5\times3=\frac{15}{2} = 7.5 \).

Answer:

7

Problem 4: