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3 years ago

Describe how to draw a scale drawing with a new scale

1 answer:

8 0

In order to redraw a scale drawing with a new scale, here are the steps that you need to follow : 1. Measure up the current scale and the size of the drawing 2. Determine the ratio of the second scale 3. Adjust the size and dimension of the first drawing into the new scale based on the previously calculated proportion

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Hey guys can anyone help me find the missing side length pls and ty

Tcecarenko [31]

$\bold{\huge{\green{\underline{ Solution}}}}$

$\bold{\underline{ Given :- }}$

We have given a right angled triangle whose values are m, n and 2

$\bold{\underline{ To \: Find :- }}$

We have to find the value of m and n

$\bold{\underline{ Let's \: Begin :- }}$

In the given right angled triangle, we have

Perpendicular height = n units
Base = 2 units
Hypotenuse = m units

Now, By using trigonometric ratios 

$\bold{\pink{ Sin Φ = }}{\bold{\pink{\frac{Perpendicular }{Hypotenuse}}}}$

$\bold{\red{ Cos Φ = }}{\bold{\red{\frac{Base}{Hypotenuse }}}}$

$\bold{\blue { tan Φ = }}{\bold{\blue{\frac{Perpendicular }{Base }}}}$

According to the question :-

$\bold{ Cos \: 45° = }{\bold{\frac{2}{m}}}$

$\bold{ 1/√2= }{\bold{\frac{2}{m}}}$

$\bold{\red{ m = 2√2 \: units }}$

We know that , Sum of Angles of triangle is 180° .

Therefore, 

Let the unknown angle be x

$\sf{ 45° + x + 90° = 180° }$

$\sf{ x = 180° - 135 ° }$

$\sf{ x = 45° }$

Now, 

$\bold{ Cos \: x° = }{\bold{\frac{n}{2√2}}}$

$\bold{ Cos \: 45° = }{\bold{\frac{n}{2√2}}}$

$\bold{ 1/√2= }{\bold{\frac{n}{2√2}}}$

$\bold { n = 2√2/√2 }$

$\bold{\red{ n = 2\: units }}$

Thus, The value of m = 2√2 and n = 2

$\sf{\blue{ Hence, \: option \: D \: is \: Correct }}$

5 0

2 years ago

Read 2 more answers

Help me pls 30 points

tensa zangetsu [6.8K]

Answer:

The toy replica is smaller than the model in the lobby

Step-by-step explanation:

Model in the lobby: 1:103

Toy Replica: 1:200

1:200 < 1:103

1:200 = 1/200

1:300 = 1/300

4 0

3 years ago

Can someone help me please with these questions

Ad libitum [116K]

What is the question? You only gave shapes with dimensions.
Do you want us to find volume? Or surface area??
Come on please, dont leave us hangin.

Com.ment me what your question is

7 0

2 years ago

Read 2 more answers

A rectangle has length x cm and width 2 cm less

vichka [17]

x^2 - 2x = 146

x^2 - 2x - 146 = 0

See attachment. The quadratic formula is needed in this case.