A triangle with a base of 0.5 m has an area of 12 m^2. What is the height, in m, of the triangle?

2 answers:

8 0

Hey there, we are going to use the formula for a triangle. The formula for a triangle is A=hᵇb/2. Hₐ=2A/B=2*12/0.5=48m. Therefore, the height is 48m

Korvikt [17]4 years ago

3 0

area of a triangle=(base x heigth)/2

data:
base=0.5 m
area=12 m²

Therefore:
12 m²=(0.5 m x height)/2
2*12 m²=0.5 m x hegith
24 m²=0.5 m x hegith
hegith=24 m²/0.5 m
heigth=48 m

Answer: heigth=48 m

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2. If the sum of the first 12 terms of a geometric series is 8190 and the common ratio is 2. Find the first term and the 20th te

alexandr1967 [171]

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<u>Step-by-step explanation:</u>

Here we have , If the sum of the first 12 terms of a geometric series is 8190 and the common ratio is 2. We need to Find the first term and the 20th term. Let's find out:

We know that Sum of a GP is :

⇒ $S_n = \frac{a(r^n-1)}{r-1}$