By OnlineEdumath   |  8th June, 2025
Calculating x. sina = 3.5/12.5 a = asin(3.5/12.5)° b = 2a b = 2asin(3.5/12.5)° sinc = 10/12.5 c = asin(10/12.5)° d = 2c d = 2asin(10/12.5)° e = 180-b-d e = 180-2asin(3.5/12.5)-2asin(10/12.5) e...
By OnlineEdumath   |  8th June, 2025
cosa = (2√(5))/(3√(5)) a = acos(⅔)° a is angle PRT. tana = 25/b b = 25/(tan(acos(⅔))) b = 22.360679775 units. b = 10√(5) units. Therefore, area triangle TRP is; ½*25b = ½*25*10√(5) = 125√(5) squa...
By OnlineEdumath   |  8th June, 2025
Let the radius of the ascribed half circle be 1 unit. a² = 2x² a = √(2)x units. b²+1² = a² b = √(2x²-1) units. c = 1-b c = (1-√(2x²-1)) units. d = ½(c) d = ½(1-√(2x²-1)) units. e...
By OnlineEdumath   |  7th June, 2025
Let a be the radius of the circle. b² = 2(2)² b = √(8) b = 2√(2) cm. c = (2√(2)-a) cm. It implies; 2a² = c² 2a² = (2√(2)-a)² 2a² = 8-4√(2)a+a² a²+4√(2)a-8 = 0 (a+2√(2))² = 8+(2√(2...
By OnlineEdumath   |  7th June, 2025
Let the bigger inscribed semi circle radius be 2 units. Let the big inscribed semi circle radius be r. Let the inscribed circle radius be q. Calculating r. (2+r)² = 2²+(4-r)² 4+4r+r²...
By OnlineEdumath   |  7th June, 2025
Let a be the radius of the circle. 2πa = 14π a = 7 cm. Calculating x. cos49 = b/7 b = 7cos49 b = 4.59241320293 cm. c = 2b c = 9.18482640587 cm. c is CD  d = 180-49-37.5 d = 93....
By OnlineEdumath   |  6th June, 2025
Calculating Total Shaded Area, Area Grey, Purple and Blue. Notice. KLMN is a square. Calculating area grey. a = 6-4 a = 2 units. sinb = 2/6 b = asin(⅓) b = 19.4712206345° c²+2² = 6² c = 4√(2) u...
Mathematics Question and Solution
By OnlineEdumath   |  6th June, 2025
Sir Mike Ambrose is the author of the question. tan30 = a/3 a = √(3) units. b = a+3 b = (3+√(3)) units. tan30 = c/b ⅓√(3) = c/(3+√(3)) c = ⅓(3√(3)+3) units. c = (1+√(3)) units. It im...
By OnlineEdumath   |  6th June, 2025
Let a be the blue length. b² = 4²+3² b = √(25) b = 5 units. Let alpha be c. cos(2c) = 4/5 cos(c+c) =4/5 (cosc)²-(sinc)² = 4/5 --- (1). cosc = 3/a --- (2). a² = 3²+d² d = √(a²-9)...
By OnlineEdumath   |  5th June, 2025
Let a be the radius of the circle. b = 7-3 b = 4 cm. c = (7-a) cm. d = (3-a) cm. e = c+d e = 7-a+3-a e = (10-2a) cm. Calculating a. e² = (2a)²+4²  (10-2a)² = 4a²+16 100-40a+4...
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