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3 years ago

Solve the formula for the area of a triangle A = (1/2) bh for height h

1 answer:

4 0

A = (1/2) bh for height h

2A = bh

first multiply both sides by 2 then divide both sides by b

Area of triangle = (1/2)bh

A = (1/2)bh

2A = bh

h = 2A/b

110 = 1/2(11)h

110 = 5.5h

110/5.5 = 20

The answer Is H = 20

Hope this helps (:

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Pls help and no unnecessary typin* I will report

satela [25.4K]

$\large\bf{\underline{Given :}}$

An isosceles triangle ABC
AD is a bisector of ∠‎A

__________________________________________

$\large\bf{\underline{To \:prove :}}$

BD = DC

__________________________________________

$\large\bf{\underline{In \: triangle \: ABD\:and\: triangle\:ADC}}$

${⟹AD = AD\:\:\:\:\:\:\:\:\:\:\:\:\:\:( common)}$

${⟹∠BAD = ∠CAD\:\:\:\:\:\:\:\:\:( given : AD \:is \:bisector \:of \:∠A )}$

${⟹∠ABD = ∠ACD\:\:\:\:\:\:\:\:\:( given : angles\: in \:isosceles\: trianlge )}$

$\large\bf{\underline{Hence}}$

By ASA criteria ∆ABD congurant to ∆ADC

__________________________________________

$\large\bf{\underline{So}}$

By CPCT ( corresponding parts of congurant triangle )

$\large\bf{BD = DC}$

__________________________________________

$\large\bf{\underline{Note :}}$ Slide to view full answer.

6 0

3 years ago

Find the product -12 • (-2) A. 10 B. 24 C. -24 D. -14

svetoff [14.1K]

12 x 2 = 24

When you multiply two negative numbers, the answer will be a positive
When you multiply one negative and one positive, the answer will be negative.

Using that rule:

(-12)(-2) = 24

24 is your answer

hope this helps

6 0

3 years ago

Melissa earns $180 a week selling shoes plus a commission of $10 each pair of shoes she sells. How

eimsori [14]

Step-by-step explanation:

10X+ 180= 500

10X= 500-180

10X= 320. .....divine both sides by 10 to solve for X

X = 32.

check

10(32)+180 = 500

320+180 =500

500 =500...confirmed

4 0

3 years ago

Solve the equation for x by graphing -2x + 3 = -3(-x) - 2

adoni [48]

Answer:

x = 1

Step-by-step explanation:

There are a couple of ways to solve this. One is to graph the left side of the equation, graph the right side of the equation, and look for the point where those graphs intersect. It is at x = 1. The first attached graph shows this solution.

Another method for solving such an equation is to subtract one side from the other and look for the value of x that makes the resulting expression zero.

(-2x +3) -(-3(-x) -2) = 0

A graphing calculator doesn't need to have this simplified. If it is simplified, it becomes ...

-5x +5 = 0

So, the graphed line is y = -5x+5. Its x-intercept is x=1, the solution of the original equation. The graph of this is shown in the second attachment.

6 0

3 years ago

Triangle XY Z is similar to triangle ABC.

garri49 [273]

Answer:

13.5

Step-by-step explanation:

12/4=3

9/3=3

4.5x3=13.5

8 0

2 years ago

Read 2 more answers