Math, asked by hardeshshukla413, 5 months ago

4 The door in the diagram is made from a semicircle of radius r and a square with sides of length 2r. The perimeter of the door is 6.4 m long. Find the width of the door in cm.

Attachments:

Answers

Answered by kiruthika26108

4

Answer:

Given :perimeter =6.4 m

to find :the width of the door in cm

proof :perimeter of a square is 4a sq units

6.4m²=4×a m

a=6.4÷4=1.6 m

therefore the width of the door is 1.6 m in cm 160cm

(and the radiusof the semicircle 160÷2=80cm)

Previous Question

Next Question

Similar questions

Social Sciences, 2 months ago

Complete the following table related to the three methods of estimating national income, •Product Method •Income Method •Expenditure Method...

History, 2 months ago

In one or two paragraphs, explain how Kublai Khan was able to successfully rule China. What decisions did he make that helped him succeed?

Math, 2 months ago

In AABC, if AC2 = ABP + BC then the triangle is right angled at which vertex ?

Physics, 5 months ago

a man drives 40km/hr and covers distance of 600km. what is the total time taken by man?

Economy, 5 months ago

if total fixed cost of producting 5 units of output is rs.20 and total variable cost is rs.50, then what producing 5 units of output ?at will be the value of total cost i...

India Languages, 11 months ago

पुण्डरीकस्य पिता क:? (i) श्वेतकेतुः (ii) अश्वकेतुः (iii) सूर्यकेत्तुः (iv) चन्द्रकेतुः...

India Languages, 11 months ago

अधोलिखितस्य पद्यांशस्य सप्रसंगं संस्कृतव्याख्या करोतु परोक्षे कार्यहन्तारं प्रत्यक्ष प्रियवादिनम्। वर्जयेत्तादृशं मित्रं विषकुम्भं पयोमुखम्।। अथवा पात्रापात्र-विवेकोऽस्ति धेनुपन्नगयोः इव। तृणात्संजायते क्षीरं क्षीरात्संजायते विषम्।।...

India Languages, 11 months ago

संस्कृत भाषया उत्तरत- (क) उद्भिज्जपरिषद् इति पाठस्य लेखकः कः अस्ति? (ख) उद्भिज्जपरिषदः सभापतिः कः आसीत्? (ग) अश्वत्थमते मानवाः तृणवत् कम् उपेक्षन्ते? (घ) सृष्टिधारासु मानवो नाम कीदृशी सृष्टि:? (ङ) मनुष्याणां हिंसावृत्तिः कीदृशी? (च) पशुहत्या केषाम् आक्रीडनम्? (छ) श्वापदानां हिंसाकर्म कीदृशम्?