Step-by-step explanation:
Triangle 1:
Given the base (b) as 5 and the height (h) as 8, we can use the formula for the area of a triangle:
\[ A = \frac{1}{2} \times b \times h \]
Substitute the given values:
\[ A = \frac{1}{2} \times 5 \times 8 = 20 \]
Triangle 2:
Given the base (b) as 6 and the height (h) as 10, we can use the same formula:
\[ A = \frac{1}{2} \times b \times h \]
Substitute the given values:
\[ A = \frac{1}{2} \times 6 \times 10 = 30 \]
Triangle 3:
Given the base (b) as 4 and the height (h) as 7, we can again use the formula:
\[ A = \frac{1}{2} \times b \times h \]
Substitute the given values:
\[ A = \frac{1}{2} \times 4 \times 7 = 14 \]
So, the areas of the three triangles are:
Triangle 1: 20
Triangle 2: 30
Triangle 3: 14
