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2 years ago

If QN bisects PQR and N is THE midpoint of PR classifiy each triangle by its angles and sides

Mathematics

1 answer:

Anna11 [10]2 years ago

7 0

Ushehhdhdheueuejejsisi

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To find the measure of ∠A in ∆ABC, use the___(Pythagorean Theorem, Law of Sines, Law of Cosines). To find the length of side HI

nadya68 [22]

Part 1) To find the measure of ∠A in ∆ABC, use

we know that

In the triangle ABC

Applying the law of sines

$\frac{a}{sin\ A}=\frac{b}{sin\ B}=\frac{c}{sin\ C}$

in this problem we have

$\frac{a}{sin\ A}=\frac{b}{sin\ theta}\\ \\a*sin\ theta=b*sin\ A\\ \\ sin\ A=\frac{a*sin\ theta}{b} \\ \\ A=arc\ sin (\frac{a*sin\ theta}{b})$

therefore

the answer Part 1) is

Law of Sines

Part 2) To find the length of side HI in ∆HIG, use

we know that

In the triangle HIG

Applying the law of cosines

$g^{2}=h^{2}+i^{2}-2*h*i*cos\ G$

In this problem we have

g=HI

G=angle Beta

substitute

$HI^{2}=h^{2}+i^{2}-2*h*i*cos\ Beta$

$HI=\sqrt{h^{2}+i^{2}-2*h*i*cos\ Beta}$

therefore

the answer Part 2) is

Law of Cosines

3 0

2 years ago

Read 2 more answers

Solve for x in the equation x^-8x + 41 = 0

Sav [38]

solve the equation for X by finding a,b, and c of the quadratic then applying the quadratic formula.

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2 years ago

If the length and width of a rectangular solid are increased by 10% and the height is increased by 20%, by what percent is the v

9966 [12]

LWH=V

increasse by 10% means times 1.10
increase by 20% is times 1.20

L turns to 1.1L
W turns to 1.1W
H turns to 1.2H

(1.1L)(1.1W)(1.2H)=1.452LWH
so it is increased by 45.2%

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3 years ago

The triangles are similar.

Natalija [7]

X=23

I say this because you can see that the scale factor is 3 due to just visually scaling both the long and short leg from the original triangle to the dilated triangle. Dividing 39 by 3 is 13, and doing it in reverse. Adding 10 would equal 23, the initial value. So that'd be the missing value.

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3 years ago

Please help me with this question

rjkz [21]

Answer:

Step-by-step explanation:

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2 years ago