3 years ago

Quadrilateral ABCD is a rhombus with an area of 20 square inches.

Mathematics

1 answer:

Ugo [173]3 years ago

8 0

Answer:

area of rhombus =1/2 d1×d2

20=1/2 ×10×d2

d2=4

intersection of diagonal make right angle and cut in equal parts

d1/2=10/2=5

d2/2=4/2=2

use Pythagoras in right angle to bide side

side^2= 5^2 +2^2

side = √29

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max2010maxim [7]

Answer:

Step-by-step explanation:

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aev [14]

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Step-by-step explanation:

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3 years ago

If the simple interest rate is 5%p.a. , how long does it take for the amount to become twice the principal

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3 years ago

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Solving special systems<br> {y=1/2x+4<br> {-1/2x+y=-5

ryzh [129]

Answer:

no solution

Step-by-step explanation:

Given the 2 equations

y = $\frac{1}{2}$ x + 4 → (1)

- $\frac{1}{2}$ x + y = - 5 → (2)

Substitute y = $\frac{1}{2}$ x + 4 into (2)

- $\frac{1}{2}$ x + $\frac{1}{2}$ x + 4 = - 5 , that is

4 = - 5 ← not possible

This indicates the system has no solution

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3 years ago