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stepladder [879]
2 years ago
8

Work out the size of angle A 11cm 9cm 38°​

Mathematics
1 answer:
lara [203]2 years ago
4 0

Answer:

There is nothing here to figure this question out.

Step-by-step explanation:

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Answer:

im sorry I don't know I didn't do stuff like this in school

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2 years ago
Find a. Round to the nearest tenth:
Ulleksa [173]

Step-by-step explanation:

In the following triangle, a= ? , b= 2cm.

m<B= 105° , m<C = 15° ,m< A =?

Now, we know that sum of the interior angles of the triangle = 180°

m<B+m<C +m< A =180°

105°+15°+m< A=180°

m< A= 180- 120° = 60°

\frac{ \sin( A) }{a}  =  \frac{ \sin(B) }{b}

\frac{ \sin(60) }{a}  =  \frac{ \sin(105) }{2}

a =  \frac{ \sin(60) }{ \sin(105) }  \times 2

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6 0
3 years ago
If a triangle has a height of 7 centimeters and a base of 4 centimeters,what is the area
sattari [20]

Answer:

14cm^2

Step-by-step explanation:

Area of a triangle is (base×height)/2

(4×7)/2

28/2

=14 centimetres squared

8 0
3 years ago
HELP ME ITS TIMED AND I WILL GIVE BRAINLIEST!!!!!
Olegator [25]

To find the gradient of a line we first hv to find the formula

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first we will work for line 1

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So the equation 1 line 1 is not true

we will now go to equation 2 line 2

the equation is 3x+y=-5

we substitute the values

3(-2--0)+1--1=-5

3(-2)+-2=-5

-6+-2=-5

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group like terms

Ur answer should look like this -3

So the answer is 3x+y=-5

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Unit 7 polynomials and factoring homework 7 factoring trinomials answer key
ra1l [238]
What is this supposed to be ?
7 0
2 years ago
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