Answer:
- 63 ft²
- h = 2A/b; h = 7 ft
Step-by-step explanation:
1. Put the values where the variables are in the formula, then do the arithmetic.
... A = (1/2)bh = (1/2)(18 ft)(7 ft) = 63 ft²
2. Divide by the coefficient of h. Substitute the given values and do the arithmetic.
... A = (1/2)bh
The coefficient of h is b/2, so we divide by that—or multiply by its inverse, 2/b.
... 2A/b = h
Substituting the given numbers, you have ...
... 2(28 ft²)/(8 ft) = h = 7 ft
The height of the triangle is 7 ft.
Answer:
40.) the third one
42.)the last one
Step-by-step explanation:
Answer:
32
Step-by-step explanation:
angel A= AngelC ( due to isosceles triangle)
now,
angel A+ Angel B + Angel C = 180° ( sum of the three angles of triangle is 180°)
74°+angle B+ 74° = 180°
148° + Angel B = 180°
angel B = 180° - 148°
therefore, Angel B = 32
Answer:
Hope this is correct and helpful
HAVE A GOOD DAY!
The symbol of a line is ↔ . Hence, a line PQ is symbolically written as ←→PQ P Q ↔ .
