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3 years ago

The diagram shows a regular pentagon

Mathematics

1 answer:

saul85 [17]3 years ago

8 0

Answer:

a) 540 b) 108

Step-by-step explanation:

to find the interiour angle of any shape subttract the number of side by 2 and then times by 180 180 (n-2)

and then 2 find one angle divide total by number of sides 180 (n-2) /n

if tht makes sense

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A cyclist travels from Ato B in two stages. Stage one is 28kmwhich is 2/7 of the total journey . How long is stage 2

Sladkaya [172]

Stage B would be 70km since 5/7 is stage B and 5 x 14 = 70

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3 years ago

Name 6 elements of PQR.

icang [17]

Answer:

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Step-by-step explanation:

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3 years ago

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Roman55 [17]

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3 years ago

A right triangle has a leg of 12 cm and a hypotenuse of 19 cm.

Yakvenalex [24]

Answer:

14.7 cm

Step-by-step explanation:

Using Pythagoras Theorem,

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$= \sqrt{ {19}^{2} - {12}^{2} }$

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$= 14.730919...$

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6 0

3 years ago

Jamal's deck is in the shape of a polygon and is shown on the grid below.(-8,6)(6,6)o[(-8, -4),(6,-4)What is the area of Jamal's

PSYCHO15rus [73]

Let;

A(-8,6) B(6,6) C(6, -4) D(-8, -4)

Let's find the length AB

x₁= -8 y₁=6 x₂=6 y₂=6

We will use the distance formula;

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

$=\sqrt[]{(6+8)^2+(6-6)^2}$ $=\sqrt[]{14^2+0}$ $=14$

Next, we will find the width BC

B(6,6) C(6, -4)

x₁= 6 y₁=6 x₂=6 y₂=-4

substitute into the distance formula;

$d=\sqrt[]{(6-6)^2+(-4-6)^2}$

$=\sqrt[]{(-10)^2}$ $=\sqrt[]{100}$ $=10$

Area = l x w

= 14 x 10

= 140 square units

7 0

1 year ago