Answer:
180°
Step-by-step explanation:
because because that's how much the angle of this triangle is
A^2+b^2=c^2 (Pythagoran theorem)
-> 30^2 + length^2 = 78^2
-> length = √6084-900 = <span>√5184 = 72 ft
=> area = length x width = 72 x 30 = 2160 ft^2</span>
Answer:
Area of a semi circle is 1/2πr²
r = radius
Area = 1/2 × π × 18²
= 162π
= 508.94km²
Hope this helps.
Answer:
252 cm²
Step-by-step explanation:
2[½ × (20 + 16) × 7]
36 × 7
252
1 km = 100 dam (decameters i hope)
11500 dam
