Look at the figure below in imagine.

Mathematics

1 answer:

irina1246 [14]4 years ago

3 0

Angle a and b should add up to 90, because it says it is a right angle.

So equation 90-a=b.

You might be interested in

Find the total surface area of the cone in the figure. ( use rr=3.14.)

nikitadnepr [17]

Answer:

Answer D

Step-by-step explanation:

The formula is $A = pi r(r+\sqrt{h^2+r^2})$ . We have our r (radius) and h (height), so plugging it all in would give us A = (3.14)(5 + sqrt(12^2)+(5^2). After computing this, you would get answer D, 282.6.

4 0

3 years ago

Daniel has read 10 % of a book. He has 54 more pages to finish. How many pages are there in the book

Elena L [17]

Answer:

Step-by-step explanation:

10% = ?

54= ?

100%-10%=90%

54=90%

54/9=6

6=10%

6*100%=60

5 0

3 years ago

Find the distance between the points (5, -3) and (0, 2).

ohaa [14]

Answer:

Distance between points (5, -3) and (0, 2) is √50 or 7.07

Step-by-step explanation:

We need to find distance between two points (5,-3) and (0,2)

The distance formula used is:

$d= \sqrt {\left( { x_2-x_1 } \right)^2 + \left( {y_2-y_1} \right)^2 }$

here

x₁= 5, y₁=-3, x₂=0 and y₂=2

Putting values in the formula:

$d= \sqrt {\left( {x_2-x_1} \right)^2 + \left( {y_2-y_1} \right)^2 }\\d= \sqrt {\left( {0-5} \right)^2 + \left( {2-(-3)} \right)^2 }\\d= \sqrt {\left( {-5} \right)^2 + \left( {2+3} \right)^2 }\\d= \sqrt {25+25}\\d= \sqrt {50}\\d= 7.07$