Answer:
Step-by-step explanation:
#1.
AΔ = (6)(10)/2 = 30
Aₙ = (8)(10) = 80
Total A = AΔ + Aₙ
= 30 + 80
= 110 m²
#2.
AΔ = (b)(12)/2 = 30
get b of triangle first, using Pythagorean
c² = a² + b²
13² = 12² + b²
b = √169-144 = √25 = 5
so
AΔ = (5)(12)/2 = 30
Aₙ = (12)(12) = 144
= 30 + 144
= 174 m²
apply same concept to other problems.
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Answers & Comments
Answer:
Step-by-step explanation:
#1.
AΔ = (6)(10)/2 = 30
Aₙ = (8)(10) = 80
Total A = AΔ + Aₙ
= 30 + 80
= 110 m²
#2.
AΔ = (b)(12)/2 = 30
get b of triangle first, using Pythagorean
c² = a² + b²
13² = 12² + b²
b = √169-144 = √25 = 5
so
AΔ = (5)(12)/2 = 30
Aₙ = (12)(12) = 144
Total A = AΔ + Aₙ
= 30 + 144
= 174 m²
apply same concept to other problems.