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erastovalidia [21]
3 years ago
10

Assuming that a 90° arc has an exact length of , find the length of the radius of the circle.

Mathematics
1 answer:
fiasKO [112]3 years ago
7 0
If the exact length is s, you have
.. s = r*θ . . . . θ = π/2
.. r = s/θ
.. r = 2s/π

Fill in the exact length for "s" in the formula and compute to find the radius.
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Given ∆ABC with vertices A(−4, −3), B(0, 0), C(2, −3) and ∆DEF with vertices D(3, 1), E(6, -3), F(3, −5), use the definition of
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By SSS congruency criteria ΔABC ≅ ΔDEF

<h3>What is congruency?</h3>

Two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.

The given vertices of the triangles are;

ΔABC: A(−4, −3), B(0, 0), C(2, −3)

ΔDEF:  D(3, 1), E(6, -3), F(3, −5)

The lengths of the sides of ΔABC are

AB = √((0+4)² + (0+3)²) = √25 = 5

BC = √((2-0)² + (-3 - 0)²) = √13  

AC = √((2+4)² + (-3 +3)²) = √36 = 6

The lengths of the sides of ΔDEF are;

DE = √25=5

EF = √13

DF = √36 = 6

As,

AB= DE, BC = EF , AC= DF

So, By SSS congruency criteria ΔABC ≅ ΔDEF

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brainly.com/question/6563819

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2 years ago
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taste of your own medicine jk

Step-by-step explanation:

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3 years ago
2p x 3q x 5r maths watch
Zepler [3.9K]

Answer:

2px^ 8 qr

Step-by-step explanation:

<u>Reformatting the input : </u>

Changes made to your input should not affect the solution:

(1): "x5"   was replaced by   "x^5".  1 more similar replacement(s).

<u>STEP  1 : </u>

<em><u>Equation at the end of step 1 </u></em>

 ((2px3 • q) • x5) • r

<u>STEP  2 : </u>

<u></u>

<em><u>Final result : </u></em>

 2px8qr

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