To find the area of a triangle, you can use the formula:
\[ \text{Area} = \frac{1}{2} \times \text{base} \times \text{height} \]
For the triangle with a base of 8 inches and a height of 4 inches:
\[ \text{Area} = \frac{1}{2} \times 8 , \text{in} \times 4 , \text{in} = \frac{1}{2} \times 32 , \text{sq. in} = 16 , \text{sq. in} \]
So the area of the triangle is 16 sq. in.
For the rectangle, the area can be calculated using the formula:
\[ \text{Area} = \text{length} \times \text{width} \]
For the rectangle with a length of 10 m and a width of 5 m:
\[ \text{Area} = 10 , \text{m} \times 5 , \text{m} = 50 , \text{sq. m} \]
So the area of the rectangle is 50 sq. m.
Final Answers:
- Triangle area: 16 sq. in.
- Rectangle area: 50 sq. m.