Answer:
Step-by-step explanation:
Area of triangle = (1/2)bh
= 270.625 cm²
Area of 6 triangles = 6 * 270.625
= 1623.75 cm²
Trapezium:
a = 25 cm
b = 25 + 12.5 +12.5 = 50 cm
h = 21.65 cm
=811.875 cm²
Area of two trapezium = 2 *811.875
= 1623.75 cm²
Area of star = 1623.75 +1623.75
= 3247.50 cm²
Answer:
A Method For Simple Cases
Step 1: Find two numbers that multiply to give ac (in other words a times c), and add to give b.
Step 2: Rewrite the middle with those numbers:
Step 3: Factor the first two and last two terms separately:
Step-by-step explanation:
What is the mean of 8,7,5,7,4,7,6,7,8,8,8,6
elena-14-01-66 [18.8K]
Answer:
6.75
Step-by-step explanation:
1. Add all the numbers (81)
2. Divide by how many numbers there is (12)
3. 81 ÷ 12 = 6.75
Answer:
yes they form a proportion
Step-by-step explanation:
1 to 3 and 7 to 21 are equal
we can check this by multiplying each number in the 1 to 3 ratio by 7 to make it equal with the other ratio, 7 to 21.
(sorry if this is confusing but I hope it helped)
Do you understand trigonometry ? (sine, cosine, tangent)
