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3 years ago

20 divided by one fourth

1 answer:

3 0

$\frac { 20 }{ \frac { 1 }{ 4 } } \\ \\ =\frac { 20 }{ 1 } \cdot { \left( \frac { 1 }{ 4 } \right) }^{ -1 }$

$\\ \\ =\frac { 20 }{ 1 } \cdot { \left( \frac { 4 }{ 1 } \right) }^{ 1 }\\ \\ =\frac { 20 }{ 1 } \cdot \frac { 4 }{ 1 } \\ \\ =\frac { 80 }{ 1 } \\ \\ =80$

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Find the perimeter of the rectangle whose lenth is 24cm and diagonal is 25cm

Ahat [919]

P=2l +2w to find w use Pythagorean theorem

25^2 -24^2= w^2
625-576=w^2
w=7
2l +2w: l=24 w=7
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4 years ago

A quadrilateral has two angles that measure 222° and 81°. The other two angles are in a ratio of 6:13. What are the measures of

hram777 [196]

$\sf\huge\underline{\star Solution:-}$

$\rightarrow$ <u>Ratio of two angles are 6:13.</u>

So, let the one angle be $\sf{6x}$ and another be $\sf{13x.}$

As we know that,

Sum of all interior angles of a quadrilateral = $\sf\pink{360°.}$

So let's sum up the given angles,

$\rightarrow$ $\sf{222°+81°+6x+13x \:=\: 360°}$

$\rightarrow$ $\sf{303+19x \:=\: 360°}$

$\rightarrow$ $\sf{19x \:=\: 360-303}$

$\rightarrow$ $\sf{19x \:=\: 57}$

$\rightarrow$ $\sf{x \:=\: \frac{19}{57}}$

$\rightarrow$ $\sf{x \:=\: 3}$

Hence, $\sf{x \:=\: 3}$

So, First angle $\sf{= \:6x\: = \:6×3 \:=}$ $\sf\purple{18°.}$

Second angle $\sf{= \:13x\: = \:13×3 \:=}$ $\sf\purple{39°.}$

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Hope it helps you:)

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3 years ago

Points W, K, and are collinear.

mario62 [17]

Answer: Points W, K and (J) are collinear.

Lima CA and line YK intersect at (Point B)

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Step-by-step explanation:

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4 years ago

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klasskru [66]

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3 years ago