@samsimplifiesmaths: Comment Answer #maths #alevel #gcse #uni #school

lion_king_62 :

wurzel [17²-8²]=15 15+3÷3=21

FiOnA🙄 :

23 (17 +3 +3)

Aviv👀 :

8² + x² = 17² x² = 17²-8² x² = 225 x = 15 green length = 15cm+3cm+3cm = 21cm

≽^•⩊•^≼ 🚦 :

0123456789cyrillo :

17²-(16-3-5)²= 289-64= 225 √225+3+3= 21cm

bonero :

15

Danny Boy :

289-64=225 √225 = 15 15 + 3 + 3 Therefore the green line is 21 cms.

Зелебобер :

21

ᥫ᭡·˚ ༘₊· ͟͟͞͞꒰➳ :

17^2-8^2=225 which is 15^2 so it is 15+3+3=21 so 21Cm

user.16 :

around 21,89

torbenandersen937 :

how do u know that the angle between the 5 horizontal and the second 3 vertical is 90 degrees? if i assume that this angle is 90, then yes 21 is correct, but without that assumption it is unsolvable

Goldoby :

imposdible

henrikseee :

Also 15

️ :

15+6=21

S433D :

14.5cm

Ich bin :

15

KadShak :

Nicht lösbar, ein Winkel fehlt definiert.

qashil :

21

alex.kudli16 :

21

Paul 🇷🇸🇧🇧 🇻🇪 🇬🇱❤️🧿 :

Green line is 3+3+X. Pythagoras: 17²= X²+(16-5-3)²=> 289= X²+64=> X = 15 Green line is 21 cm.

user1629582433439 :

21

Professor Peewee :

21

Kendo :

Mental math

Joe :

Correct answer is 21.

Vesa Laakso :

a² +8²=17² a+6= Green line